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KMID : 0361920110410060431
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Korean Journal of Orthodontics
2011 Volume.41 No. 6 p.431 ~ p.439
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Cone-beam computed tomography assessment of mandibular asymmetry in unilateral cleft lip and palate patients
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Veli Ilknur
Uysal Tancan
Ucar Faruk Izzet
Eruz Murat
Ozer Torun
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Abstract
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Objective: To determine whether there is any difference between the cleft and non-cleft sides of the mandible in unilateral cleft lip and palate (UCLP) patients, or the right and left sides in control patients; and to determine if there is any difference between the mandibular asymmetry of UCLP patients and that of control patients.
Methods: We examined cone-beam computed tomography (CBCT) scans of 15 patients with UCLP and 15 age- and gender-matched control patients. We evaluated 8 linear, 3 surface, and 3 volumetric measurements and compared the cleft/non-cleft sides of UCLP patients and the right/left sides of controls.
Results: There were no statistically significant gender differences in any linear, surface, or volumetric measurement. The single significant side-to-side difference in UCLP patients was a longer coronoid unit on the cleft side than on the non-cleft side ( = 0.046). Body volume was significantly lower in the UCLP group than in the control group ( = 0.008).
Conclusions: In general, UCLP patients have symmetrical mandibles, although the coronoid unit length is significantly longer on the cleft side than on the non-cleft side. UCLP patients and controls differed only in body volume.
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KEYWORD
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Asymmetry, Cone-beam computed tomography, Cleft lip/palate
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